Barrier wire



FIG. 1 is a top perspective view of a barrier wire, according to the design, which is of variable length;

FIG. 2 is a top plan view;

FIG. 3 is a bottom plan view;

FIG. 4 is a view from one side, a view from an opposing side being the same; and,

FIG. 5 is a view from one side, a view from an opposing end being the same. 

The ornamental design for barrier wire, as shown and described. 